How to look up btc or bch on the blockchain of a wallet i generated with electrum?: I did: 1. In Electrum, went to Wallet, then 'Master public keys'Then there are 3 cosigner, each with a key2. Take first of the keys (starting with xpub) and copy it3. Fill it in on blockchair or blockdozer -> both 'no matching records found'

Go to the "Coins" tab in Electrum. If you don't see a Coins tab, look under the "Wallet" drop-down menu. (This is on a Mac, should be the same/similar on Windows too) You will find your coins listed there with the addresses and balances.

You will not see any Bitcoin Cash/BCH in Electrum only regular Bitcoin/BTC. You have no BTC in your Electrum wallet, as you seem to have moved it all out on Aug 2; so you will see nothing under Coins.

That said, if you click on the "Addresses" tab, you will see the addresses that you can right-click on and select the option to explore on the blockchain. The wallet itself has no "address" - the wallet contains the addresses that hold/contain coins. HTH

EDIT: Sorry - right-click on the transaction in the History tab and check "Details" - you will find the address under "input" - take that and look it up on a blockchain explorer if you know where one is. Blockchain.info will only give BTC balance which will be 0 since you moved it out of there. Google 'BCH blockchain explore' And post here please if you find one where it works....

And a wee tip about the "Addresses" tab in Electrum (and possibly Electron Cash as well)... you may need to expand the "Used" section to see the Address(es) involved in transactions... click the ">" symbol so it becomes a "v" and you should see the addresses you're after